Lists Home |
Date Index |
Joe Forrest <email@example.com> wrote:
|  Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
| comments cannot allow "--" in the content.
| What then on the earth is the meaning of: "For compatibility, the
| string "--" (double-hyphen) must not occur within comments"
This is to ensure that comment syntax in XML - which is a considerable
simplification - remains consistent with SGML syntax. See, e.g.  and
 here (by default, MDO is '<!', MDC is '>' and COM is '--'):
SGML allows *multiple* comments within a single comment declaration, each
comment delimited by a pair of double-hyphens. For the full syntax in
plain English, see e.g., Section 3.2.5 in RFC 1866: